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den@ mes @eine @aan ALBERT A. W001i,- or MANLIU'S, NEW YORK. LesersPatent No. 61,299, dated January 1'5, 1867.

IlilIIPROVl-lMENTv IN WATER-WHEELS.

TO ALL WHOM IT MAY CONCERN;

Be' it known that I, ALBERT A. WOOD, of Manlius, in the county ofOnondaga, and State of New York, have invented a new and usefulImprovement in Turbine Wheels; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which wil lenable; others skilled in the art to make and use the same, referencebeing had to the accompanying drawings, lforming part of thisspecification, in which- Figure 1 represents a plan or top view of thisinvention.

Figure 2 is a transverse vertical section of the same, the line a: x,iig. 1, indicating the plane of section.

Figure 3 is a similar section of, the same taken in the plane indicatedby the line y y, fig. 1.

Similar letters of reference indicate like parts.

This invention relates to a new gate, which is intended particularly forthat class of turbine wheels known as Jouvals turbine wheels, but may beapplied with advantage to water-wheels of various differentconstruction.4 It consists of a ring or segment provided with one ormore lips, which correspond in number and position to the guide-curves,and which are themselves curved in such a manner as to beparallel'throughout their length with the. guide-curves, so that the space orspaces through ywhich the water passes to the bucketsof the wheel canAbe enlarged or diminished and the water can be always made to run onthe buckets in a solid stream. The ring vwhich carries the curved lipsis operated by an endlessgscrew and suitable gear-wheels.

A represents a cylindrical or dish-shaped casting, which containstheguide-curves B, and which is arranged in relation to t'ne body of thewater-wheel in the usual manner. The dish-shaped casting A is providedwith a hub, C, that forms the guide for the circular gate D, which istted over the guide-curves and provided with a series of apertures, a,corresponding in number and position to the openings between theguide-curves in Ysuch a manner lthat by turning the gate D saidguide-curves can be opened and closed at pleasure. From the edges of theopenings in the gate D extend lips, b, which are curved parallel withthe guide-curves'and fitted into the apertures between the guide-curvesso as to` work water-tight against the concentric sides thereof. Byturning 'the gate D, therefore, the lips b are moved closerto or furthe;from the guide-curves, and the spaces through which the water has topass in order to reach thebuckets of the wheel are diminished orincreased, and said openings can at any moment be adjusted accordingtothe disposable quantity of water, so that the water will at all timespass to the buckets in solid sheets and thus give the best possibleelfect. The form of the lips b and their position in relation to theguide-curves is best shown in fig. 3 of the drawing; and said lips areprovided with lianges, c, which extend over the solid parts between theapertures in the gate D and are fastened to the same by screws ol. Saidlips may, however, be fastened to the gate in any other suitable manner.From the circumference of the gate rises a rim, e, a portion-ot` whichis provided with cogs,f, and into these cogs gears a worm, g, whichrevolves freely on a stud, h, secured 1n'astandard, i, which rises fromthe body, A, of the guide-curves. A revolving motion is imparted to theworm g by a suitable bevelgear, and by these means the gate can bereadily brought in the desired'position.

I am aware that Letters Patent, granted July 31, 1855,-*120 C, C.Taylor, describe a gate having lips projecting down between theguide-boards of thescroll. My invention differs essentially from Taylorsin forming and arrangingthe said lips so that they are parallel with thesurface of the guide-board itself. I am thus enabled when the gate isclosed to elfectually exclude water from between the guide/board and lipand avoid any pressure of water in a direction tending to o/pen thegate. The parallelism of the twosides of the chute also causes the waterto be delivered in a more uniform and f'solid stream and with lessagitation.

Having thus described my invention, I claim as new, and desire to secureby Letters Patent- The adjustable chute-board or lip b, extending downbetween the guide-curves, and parallel therewith, to conduct the waterin an unbroken stream and always inthe same direction upon the wheel,.substantially as and for the purpose set 'forth. Y

The above sp'ecication -of my inventiorr signed by me this 18th dayofJuly, 1866.

ALBERT A. WOOD.

Witnesses:

WM. F. McNAMARA, W. HAUFF.

